Intro : PortableApps.com is the world's most popular portable software solution allowing you to take your favorite software with you. A fully open source and free platform, it works on any portable storage device (USB flash drive, memory card, portable hard drive, etc), cloud drive (DropBox, Google Drive, etc), or installed locally. With millions of users all over the world and a full collection of open source software as well as compatible freeware and commercial software and partners in the software and hardware industry, PortableApps.com is the most complete solution for life on the go. PortableApps.com was founded by John T. Haller, the developer behind numerous portable applications including "Portable Firefox" which started the portable software trend. We've been making software portable since March 2004. Today, our team stands at nearly 100 developers, translators, application packagers, designers and release testers. Our goal is to centralize the knowledge and development of portable software efforts and build a single, open platform which any software or hardware developer can use.
We used to write code for websites or web apps on daily basis but the code we develop need to be backed up or uploaded to some backup server. Which wastes a lot of time. We can save this time by using dropbox.
No doubt PHP is the best tool a web developer can have and if you develop applications on Windows you must have heard of Wamp Server. (Those who don't know Wamp let me tell you it can setup your local environment in minutes to start developing your applications). There are many tasks we used to repeat daily or many times a day.
The Outernet is a global networking project currently under development by the Media Development Investment Fund (MDIF), a United States-based non-profit organization. The Outernet’s goal is to provide free access to internet data through wifi, made available effectively to all parts of the world.
A new facebook exploit allows anyone to access any photo album of non-friends as long as you have the link.
By following the simple steps shown in above image, you can bypass the security of Facebook and view photos of others online.
Input Validation Attacks are where an attacker intentionally sends unusual input in the hopes of confusing the application.
The most common input validation attacks are as follows-
1) Buffer Overflow :- Buffer overflow attacks are enabled due to sloppy programming or mismanagement of memory by the application developers. Buffer overflow may be classified into stack overflows, format string overflows, heap overflows and integer overflows. It may possible that an overflow may exist in language’s (php, java, etc.) built-in functions.
To execute a buffer overflow attack, you merely dump as much data as possible into an input field. The attack is said to be successful when it returns an application error. Perl is well suited for conducting this type of attack.
Here’s the buffer test, calling on Perl from the command line:
$ echo –e “GET /login.php?user=\
> `perl –e ‘print “a” x 500’`\nHTTP/1.0\n\n” | \
nc –vv website 80
This sends a string of 500 “a” characters for the user value to the login.php file.
Buffer overflow can be tested by sending repeated requests to the application and recording the server's response.
2) Canonicalization :- These attacks target pages that use template files or otherwise reference alternate files on the web server. The basic form of this attack is to move outside of the web document root in order to access system files, i.e., “../../../../../../../../../boot.ini”. This type of functionality is evident from the URL and is not limited to any one programming language or web server. If the application does not limit the types of files that it is supposed to view, then files outside of the web document root are targeted, something like following-
We have found that error pages are often subject to XSS attacks. For example, the URL for a normal application error looks like this:
This displays a custom access denied page that says, “Invalid password”. Seeing a string
on the URL reflected in the page contents is a great indicator of an XSS vulnerability. The attack would be created as:
That is, place the script tags on the URL.
4) SQL Injection :- This kind of attack occurs when an attacker uses specially crafted SQL queries as an input, which can open up a database. Online forms such as login prompts, search enquiries, guest books, feedback forms, etc. are specially targeted.
The easiest test for the presence of a SQL injection attack is to append “or+1=1” to the URL and inspect the data returned by the server.
example:- http://www.domain.com/index.asp?querystring=sports' or 1=1--
_Follow the instruction given below :-
1) Hold down the 'Windows' Key and Press the 'Pause/Break' button at the top right of your keyboard.
Another way is Right-Clicking 'My Computer' and then Select 'Properties'.
2) Click on the 'Advanced' tab.
3) Under 'Performance', click 'Settings'.
4) Then click the 'Advanced' tab on the button that pops up.
5) Under 'Virtual Memory' at the bottom, click 'Change'.
6) Click the 'Custom Size' button.
7) For the initial size (depending on your HD space), type in anywhere from 1000-1500 (although I use 4000), and for the Maximum size type in anywhere from 2000-2500 (although I use 6000).
8) Click 'Set', and then exit out of all of the windows.
9) Finally, Restart your computer.
10) You now have a faster computer and 1-2GB of Virtual RAM..! Have fun buddy!
B.Tech. (Software Engineer),
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